Transaction not yet indexed

mpMMcuBJhhhh3nk4SSw9fprDmXpZkmKVbEYcnL1Wmt19bEYgDYRs6MdsbkTYxJ6xQPJvzibExUH6Si4k99XEJQ2

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.